Question

2) Determine o valor de x no sistema
(2x - y = 1

(x+y = 2

( )-1

( )0

( )1

( )2​

Answer 1

▶️Aplicando método da adição:

• {$\small{2x-y=1}$
• {$\small{\underline{\:\:x+y=2}}$

• $\small{2x+x=1+2}$

• $\small{3x=3}$

• $\small{x=\dfrac{3}{3}}$

• $\underbrace{\small{x=1}}$

• $\small{y=2-x}$

• $\small{y=2-1}$

• $\underbrace{\small{y=1}}$

▶️O valor de x será igual um